Narrow ware loom



Nov. 3, 1953 E. R. HOLMES NARROW WARE LOOM 2 Sheets-Sheet l Filed April 22, 1949 s s4 es FIG .8

lll 37| l esy e3 lNVENTOR.

Nov. 3, 1953 E. R. HOLMES NARROW WARE LOOM Filed April 22, 1949 INVENTOR ELBRlDGE R. HOLMES OMM ATTORNEY 2 Sheets-Sheet 2 Patented Nov. 3, 1953 UNITED STATES ATENT OFFICE NARROW WARE LOOM Application April 22, 1949, Serial No. 89,006

13 Claims. l

This invention relates to `narrow ware looms and `it is the general object of the invention to provide such a loom wherein normally stationary shuttle blocks are mounted so they can be swung forwardly to facilitate mending a broken warp thread.

The invention relates more particularly to the type of narrow ware loom wherein the reed dwells at back center and is moved forwardly for beat-up after the shuttle has moved from one stationary shuttle block to another similar block. When stationary shuttle blocks are used it is desirable that they be in rearward position so that the shuttles may pass through the sheds, but when the blocks are in this position they are close to the harness frames and it is difficult to reach a broken warp thread.

In order to facilitate the mending of a broken warp thread in this type of narrow ware loom ,it is an important object of the invention to mount the shuttle blocks so that when required they can be swung forwardly away from the harness frame, thereby making a broken warp thread more accessible.

In order that the driving connections for the rshuttles may remain intact when the shuttle blocks are moved forwardly it is a further object of the invention to actuate the rack rod by a chain or another form of flexible connector which is preferably coaxial with the center around which the shuttle blocks are swung. The rack rod `turns with the shuttle block and is connected to the exible actuator by a rotatable connector.

In order to prevent operation of the loom when the shuttle blocks are in an abnormal forward position it is a further object of the invention to provide a form of lock which will hold the shuttle blocks in their normal stationary weaving position so long as the loom is in operation. The lock is so controlled that it can be moved to permit forward motion of the shuttle blocks only when the loom is stopped. The control is also connected in such manner that the loom cannot be started while the shuttle blocks are in their abnormal forward position.

it is a further object ofthe invention to operate each reed by mechanism located between adjacent shuttle .blocks and in such position as will permit forward movement of the shuttle blocks. The reed actuating mechanism preferably rocks on two pick time, each motion of the mechanism .corresponding to a beat-up.

With these and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts hereinafter .described and set forth.

Fig. 1 is a side elevation of part of a loom made according to the present invention,

Fig. 2 is a front elevation looking in the direction of arrow 2, Fig. 1, parts being in section and parts broken away,

Figs. 3 and 4 are enlarged vertical sections on lines 3 3 and 4 4, respectively, Fig. 2,

Fig. `5 is an enlarged vertical section on .line 5 5, Fig. 2,

Fig. 6 is an enlarged side elevation looking in the direction of arrow 6, Fig. 2,

Fig. 7 4is a detailed horizontal section on line i l, Fig. 6,

Fig. 8 is a fragmentary vertical section on line c Fig. 7,

Fig. 9 is an enlarged vertical section on line 9 9, Fig. 7, and

Fig. 10 is a vertical ksection on line l 0 10, Fig. 6, showing the `loom driving control mechanism and part of the locking means in two positions.

Referring particularly to Figs. 1 and 2, the loorn frame comprises right and left loom sides l0 and Il between which extends a shaft I2 rotating on two pick time. A take-up roll I3 and driving mechanism therefor actuated by a crank li on shaft I2 may ybe .of usual construction and advances the several webs which are woven in the loom, one of these webs being indicated at F. The loom has harness mechanism of the usual type designated herein :diagrammatically by harness frames I5 which form the warp shed W.

.Shuttle operating `chains .or exible actuators i6 and il are located respectively at the vright Vand left .of .the loom and are voperated by any suitable form of mechanism which operate the 4chains to move the shuttles in one direction on one pick of the loom and in the opposite direction on the next pick of the loom. Such mechanism is not shown specically herein, but may be similar to that shown in my prior Patents 1,668,150 and 1,766,903, with the exception that in the patents the chains rock back and forth with the lay, whereas herein there is no reciprocating lay `and the chains move in a fixed plane.

The matter thus vfar described, except as a1- ready noted, may be .of common construction and operate in 'the usual manner.

The present invention provides .a series of normally stationary blocks which can be `rocked forwardly and also provides beat-up reeds which dwell in rear position during movement of the shuttles through the warp sheds and then have a quick beat-up and return to rear position for the next passage of the shuttles. The Shuttle block structure will be described rst, after which the mechanism for operating the reeds will be described.

Referring particularly to Fig. 2, it will be seen that loom sides l!) and Il have secured thereto support brackets 29 and 2l, respectively, held in hired position on their respective loom sides, as by bolts 22, see Fig. 6. Each support is provided with a bearing 23 and a cap 2li to provide pivotal mounting for a tubular support member or carrier 25. This support member may be in the form of a pipe extending across the loom and mounted for turning about its axis in the bearings. I

Ordinarily turning of the tube 25 will be prevented by means of a lock mechanism including a segment or locking member 25 clamped as at 2l to the tube and having a lock slot or notch 23 located therein to receive a lock tooth 2B. The lock tooth is on a control lever 3l! pivoted as at 3! to the support 2li at the right hand side of the loom, see Figs. 2 and 6. A heavy tension spring 32 interposed between the forward end of lever Se and a nxed stud 33 on loom side Ill normally holds lock lever 3B in the down full line position shown in Fig. 6 with the lock tooth in slot or notch 28. Under these conditions the tubular support cannot rock in its bearings and is held stationary.

rlhe loom driving control mechanism includes a shaft 35 rockable in front and back bearings 36 and 31 secured to the loom side E53. The forward end of this shaft has secured thereto an upright arm 38 connected to a shipper rod or bar 33 extending across the loom. The rear part of shaft 35 is connected to usual well known loom driving mechanism not shown herein. It is thought suiilcient for present purposes to state that when shaft 35 is rocked counterclockwise, Fig. 2, the loom will be stopped, but when shaft 35 is rocked clockwise the loom will operate.

Secured to shaft 35 is a second segment or locking member i5 having a slot or notch 4| which is adapted to receive the rear end of arm 4.2 of lever 3i). When the loom is running the segment 25 and the lock tooth 2S will be in the full line positions shown in Fig. 6 to lock tube 25 in stationary position, and the unnotched part of segment de will be under lever arm i2 to prevent the latter from moving downwardly, as shown in dotted lines, Fig. l0. So long as the loom is in operation with shaft 35 in operating position to locate the second lock member im in the dotted line position of Fig. l0, the tubular member 25 cannot be rocked in its bearings. When the loom is stopped, however, movement of shait 35 to stopping position suggested in full lines in Fig. lo will locate slot or notch el under lever arm @.2 and the latter can if desired be lowered by manual rocking of lever 3B to the dotted line position shown in Fig. 6 against the action of spring 32 to disengage tooth 2S from notch 28 and cause lever arm 42 to enter notch 4l. If member is rocked under these conditions, segment ZG will rock to the dotted line position of Fig. 6 with its arcuate surface d in position to engage the locking tooth 29 and prevent the lever arm '12 from being moved upwardly by spring S2 out of notch 4l. The lever arm l2 is thus held in notch el to prevent Starliing of the loom so long as the segment 26 and tubular member 25 are unlocked. A stop lug is on segment 25 engages lock tooth 2S to limit counter-clockwise rocking of segment 26, see Fig. 6.

Arranged along and secured to the member is a series of shuttle blocks, four oi which are shown in Fig. 2, at Bi, B2, B3 and B4. Each shuttle block is secured to a block carrier fie the lower part of which it is split and surrounds the tube 25 and is clamped thereto as at fil. Each block support 5 has a front wall te and a higher wall 49, the associated shuttle block being held between the walls.

Each shuttle block has rotatable thereon top and bottom meshing pinions and 5i, respectively, the lattei` extending downwardly through a slot 52 in the upper part of the tube 25. The upper pinion has driving relation with nrst one and then the other of two shuttles with which it cooperates. Three shuttles are shown at Si, S2 and S3 in Fig. 2. These shuttles are of the circular type and move baci; and forth in the usual manner in grooves 5e in the shuttle blocks. It is not thought necessary to describe the manN ner in which rotation oi the pinions causes the shuttles to pass from one block to a neighboring block, since the blocks, shuttles and pinions operate in the usual and well known manner.

The lower pinions 5i mesh with a shuttle actuator or rack rod in a guide or filler 5l within the tube 25 and secured thereto against longitudinal movement as by screws The guide 5l may be made of wood and has a slot 5S in which the rack rod slides. Reciprocation of the rack rod within the tube 25 causes turning of the pinions 5B and 5l with accompanying motion of the shuttles.

The ends of the rack rod have driving relation with the previously described actuator chains i8 and IT by rotatable fittings which are the same for each end of the loom. One of these iittings will be described in connection with Figs. 8 and 9. The rack rod has an enlarged head slideable along a reduced arm tl of the ller 5i. This head Sil has attached thereto a U-shaped sheet metal member i2 having parallel sides E23 and S4 joined by a cross plate or end S5. The head is secured as by pins 65 to the side plates 63 and 6ft.

As shown in Fig. 7 a washer lil engaging the left face of the end plate t5 engages a right hand race 'll of a ball bearing designated generally at l2 and having a left hand race i3 bearing against another washer lli. .A stud or chain head l5 passes through and is rotatable in the washers 'l and lil and the ball bearing 'i2 and has threaded on the left hand end thereof nuts l one of which is against washer 'lli and the other of which is a lock nut. The right end of the head or stud 'l5 extends beyond or to the right of the U-shaped member t2 and is connected as at 7'.' to the adjacent end link 718 of chain it.

The connection between the left end oi the rack rod and chain 'i is the same as that already described, and when the nuts l5 of both connections are tightened to take up slacls between the chains and the rack rod movement of the chains will cause longitudinal motion of the racl; rod within the tube 25, the end forces being exerted through the ball bearings When the tubular member 25 is unlocked as already mentioned and turned in its bearings the ball bearing 'l2 turns to accommodate the angular motion of the tube 25 without twisting the chains.

ais-smic vIt will be seen from Fig. `1 that the :shuttle blocks .are close to the harness :frames i5 and since they .are normally locked stationary yin the upright position shown in 1 .it would be dicult for the lweaver to .reach behind the :blocks to mend a broken warp thread. It is for this reason that the tubular `member 12.5 and the :shuttle blocks :are mounted so that they7 can swing forwardly 'from the .full Vline tothe dotted line position shown in Fig. I6.

shown 1in Fig. 2 .each of the chains it and il?! is trained .over a sprocket te mounted on the upper end of .a link 3| which .may be similar lto a link :shown in the previously mentioned Patent 1,766,903. Each of 'the sprockets '3-0 is 7spaced from the tubular support 2.5 by Va rod :S2 having a screw threaded .end .|33 tapped into the :corre- Vspending support 21E or 2i .and held in adjusted position by a lock nut Sii. The rods :are `thus adjustable to permit movement of the sprocket Afor the purpose fof tightening the chain.

'The movable support `for each reed registers with the space between the corresponding shuttle blocks to enable the latter to swing forwardly without interference, as will .be apparent from Fig.`2.

Secured to shaft 'I2 is a grooved cam 85 having va high dwell 8.6, a low dwell el, and two inclines 83 and 189. .A roll 9i? ts into the groove and is rotatable on an actuator .arm 9| having a slot -92 which receives the .shaft i2, see Fig. 5. As .shown in Fig, l the forward end of `the actuator 9'! has adjustably secured thereto a rod 93 connected to an arm 5M secured to a rock shaft S5.

The latter is mounted for oscillation in the stands 2i! and 2| and also in intermediate stands :9.6 each supported .on two :struts 15?! and 9.8.. The shaft 95 .extends 4across the vloom `so that it .can be operatively related to a :number .of different reeds.

A reed 'holder 'QS iis supported by the upper ends of `the arms corresponding 4to a reed space im). There .is .a reed .R .for each .reed space lll between the shuttle blocks. Each reed is mounted cna holder '9S .supported by :four varms .arranged in `two pairs. .As shown .in Figs. 3 and -4 two ,rods 1||l| and M32 are `mounted for rocking in end supports Ztl :and l2i and also the intermediate supports 9B. Two arms |ii3 are vsecured at .|4

to rod itl, and similarly two arms |65 .are se- ,cured at i965 to red |62.. These ,pairs A'of :arms support the holder 9S for parallel motion. The rear end of the holder :extends upwardly as at IIii .and cooperates with a .lock ybar to hold the lower end of reed R Xed -with respect to the holder. A set screw i t2 clamps the lock bar against the reed to :hold the latter .in the upright position shown for instance in Fig. 4.

Extending between the arms |Ei5 is a pin H5 pivotally attached to a connector H the rear end of which is pivoted to a crank arm lll secured to a shaft `95 .as at l i8. The :shaft 95, connector 'llt and crank arm v| Ii constitute :an operating means for 'the pairs 'of arms |93 .and |65,

lWhile `the said arms and ithe holder :9.9 Yare .the operating mechanismfor the reed.

The cam B5 rand the rack rod are rso timed that one or `the other of the :dwells 185 or .e3 wili .ho-ld the reed .R in normal position behind the path of the shuttles while Athe llatter are moving, and after the shuttle motion is lcompleted in one di.- rection the `cai-n `acting :by one or the other of lits Vinclines 88 or :59 will roel: 'shaft '95 :from .one of its extreme positions :to its cti-ier `extreme position, thereby moving the arms |33 and .m5, holder 6 2199., and reed .-.R .frst forwardly to the full line beat-up position 4shown in Fig. 4 land then back tothe `rear dotted .line position. When shaft .95 .rocks in the opposite :direction the reed is given asecond :beat-up motion.

.It will @be understood that there will be one reed fior each .of the Afabrics F and that the yextent of motion fof the reed can be varied by changing the adjustment of a stud |28 in a -slot 2i in arm 94. Each reed R, its holder 9S, and arms 93 and M5 register -with the corresponding reed space |730 so that .the shuttle blocks can move to the dotted line .position shown in Fig. 6 without striking or interfering with the reeds or their mountings. The loom can be stopped with the reed in Aany position .and the shuttle blocks will be able to yswing `forwardly.

From the foregoing it will be seen that the invention sets .forth .means by which a series of vshuttle -bloclrs in .a narrow ware loom are normally istationary but vare so mounted that they can lswing forwardly away from the harness frames to facilitate the mending of a broken warp thread. it will also be seen that the loom shipper mechanism and the tubular member 25 are inter-controlled by lock lever 3e in such manner that the :shuttle blocks cannot be swung forwardly so long as the loom is in operation, nor can the `loom -bestarted if the shuttle blocks are in their vforward Anon-weaving position. Also, the rotary connection between the -chains and the rack rods permit the tube 25 to be rocked without straining ythe chains .it or li. Furthermore, the reeds are mounted on parallel arms registering with reed spaces between the .shuttle blocks so lthat :the latter can swing forwardly without interference :on the part of the reed or any part of its operating mechanism.

Having thus described the invention it will be seen that .changes and modications of the foregoing fspeciflc disclosure may be made without departing from the spirit and scope of the invention.

What is elaimed :as .new .is

l. iin :a narrow ware loom having warp controlling harness -irames a series :of aligned shut- `tle blocks forward-of the harness frames mounted as a group to he either in stationary normal weaving position adjacent -t-o the harness frames or in non-weaving position forward of the normal position thereof and the harness frames, .means locking said group in rstationary normal position during loom operation, loom driving control mechanism .in one position when the loom is operating :and in another position when the loom is stopped, and a lock member for the locking means .positioned by the control mechanism when `the flatter `is in said one position preventing the .locking `mean-s from unlocking said group during loom operationfbut positioned by the control mechanism vvwhen the latter is in said other position incident t0 :loom stoppage to permit the locking means to vmove 'to unlocking position to enable said .group to 4nmve to non-weaving posi-tion thereoi.

2. In .a narrow -ware .loom having warp controlling harness frames, an elongated support member extending across and mounted on the loom in vfrontof said harnesses'for angular motion about'an axis fixed with respect to the loom, shuttle .blocks secured to and extending upward- .ly from and movable angularly with said supportv .member :about said axis, a lock normally .holding the member and shuttle blocks stationary .with respect to 'the :loom with the shuttle blocks. adjacent to said harness frames, and means preventing the lock from moving to unlocking position relative to the member when the loom is in operation but permitting the lock to move to unlocking position relative to the member when the loom is stopped to permit angular movement of the upper ends of said shuttle blocks around said fixed axis forwardly away from said harness frames.

3. In a narrow ware loom having loom driving control mechanism in operating position when the loom is running and in stopping position when the loom is stopped, an elongated member extending across the loom, shuttle blocks fixed to said member, means mounting the member for angular motion about a fixed axis to move the shuttle blocks forwardly from the normal position thereof, lock means controlled by the loom control mechanism and caused by the latter to prevent angular motion of said member and Shuttle blocks and to hold the latter in normal stationary position during loom operation and enabling the lock means to move to unlocking position relatively to the member to permit angular motion thereof only when the loom control mechanism is in stopping position.

4. In a narrow ware loom having a series of shuttle blocks, a support for said blocks mounted on the loorn for angular movement about an axis, a rack rod for operation of shuttles on the blocks extending along said axis and moving angularly with the blocks, a reciprocating actuator for the rack rod moving in a fixed plane, and a connection between the rack rod and actuator having a part secured to the raclr rod and a second part secured to the actuator, one of said parts being rotatable on the other part and said parts cooperating to cause the actuator to move the rack rod.

5. In a narrow ware loom having a series of shuttle blocks, a tubular member to which the shuttle blocks are secured, bearings on the loom in which the member is movable angularly about the axis thereof to rock the shuttle blocks from the normal position thereof, a rack rod within and moving angularly with said member and movable longitudinally to operate shuttles on the shuttle blocks, a reciprocating actuator for the rack rod, and a connection between the rack rod and actuator causing' the latter to move the rack rod longitudinally and enabling the rack rod to move angularly relatively to the actuator when the tubular member turns in said bearings.

6. In a narrow ware loom having a control mechanism in operating position when the loom is running and in stopping position when the loom is at rest, a series of shuttle blocks, a support to which the shuttle blocks are secured movable about a fixed axis, a locking member moving with said support, said shuttle blocks, support and locking member normally in stationary position with the shuttle blocks in a weaving position but movable angularly about said axis toplace the shuttle blocks in a non-weaving position, a second locking member moving with the control mechanism, and a lock for cooperation with one or the other of said locking members, said lock normally having locking relation with the first named locking member to lock the shuttle blocks in stationary weaving position and being prevented from moving to unlocked position relative to said iirst member by the second locking member when the control mechanism is in operating position, said lock being movable out of locking relation with respect to the first locking member and into locking relation with respect to the second locking member only when the control mechanism is in stopping position, and the rst locking member preventing said lock from moving out of locking relation with respect to the second locking member when the shuttle blocks are in non-weaving position.

7. In a narrow ware loom, a series of shuttle blocks, a support to which said shuttle blocks are secured movable about a xed axis, said blocks and support being normally in stationary weaving position and rockable about said axis to move the blocks to non-weaving position, loom control mechanism movable either to running or stopping position, and locking means including a locking member iixed with respect to said support and a second locking member fixed with respect to said control mechanism and a lock for cooperation with said locking members, said locking means preventing the lock from unlocking the locking member for the support unless the locking member for the control mechanism is in stopping position and preventing the lock from moving out of locking relation with respect to the second locking member unless said support and shuttle blocks are in normal position.

8. In a narrow ware loom, a pair of shuttle blocks separated by a reed space, a support to which the shuttle blocks are secured rockable about a fixed axis and normally held stationary with the shuttle blocks in weaving position but capable of moving angularly to move the shuttle blocks forwardly, a reed in said reed space, and operating mechanism forward of said reed lccated within a space registering with said reed space to reciprocate the reed, said operating mechanism being out of the path of said shuttle blocks when the latter move forwardly.

9. In a narrow ware loom, a pair of shuttle blocks separated by a reed spacey a support on which the shuttle blocks are xed supported on the loom and normally held in xed position with the shuttle blocks stationary in weaving position but movable to move the shuttle blocks forwardly, a reed in said reed space, parallel arms movable about spaced axes supporting the reed, and operating means moving said arms about their respective axes to move the reed forwardly for a beat-up, said arms being confined to a space in front of and registering with said reed space to be out of the path of said shuttle blocks when the latter move forwardly.

10. In a narrow ware loom operating with a plurality of shuttles and having warp harness frames, an elongated support member extending across the loom and mounted to move angularly around an axis xed with respect to the loom, a plurality of shuttle blocks for the shuttles iixed to and extending upwardly from said support member, an actuator for the shuttles extending coaxially with respect to said support member, and lock means for said member capable of assuming two positions in one of which said lock means locks the support member and shuttle blocks in normal position xed with respect to the loom, said member and upper parts or" shuttle blocks being movable angularly around said axis and actuator to move the shuttle blocks away from said harness frames when the lock is in the other position thereof.

11. In a narrow ware loom operating with a plurality of shuttles and having warp harness frames, a tubular support member mounted to move angularly about an axis fixed with respect to the loom, a plurality of shuttle blocks secured to and extending upwardly from the tubular member, a shuttle actuator extending through and coaxial with said tubular member, and lock means capable of assuming locking and unlocking relation with respect to said tubular member effective when in locking relation to hold said tubular member and shuttle blocks stationary with respect to the loom and the upper parts of said shuttle blocks being movable forwardly around said axis away from the harness frames when said locking means is in unlocking relation relative to said tubular member.

12. In a narrow ware loom operating with a plurality of shuttles and having warp harness frames,V an elongated support member extending across the loom and mounted for angular movement about an axis fixed with respect to the loom, a plurality of shuttle blocks secured to and extending upwardly from and arranged along the support member, shuttle operating pinion means rotatable on each shuttle block, a shuttle actuating rack coaxial with the support member meshing with said pinion means, and lock means capable of assuming locking and unlocking relation relative to said support member and effective when in locking relation to hold said member and shuttle blocks xed in normal position, said support member being capable of angular movement about said axis in a direction to move the upper parts of said shuttle blocks away from said harness frames when the locking means is in the unlocking position thereof relative to the support member.

13. In a narrow ware loom operating with a plurality of shuttles and having warp harness frames, an elongated support member mounted for angular motion about an axis iixed with respect to the loom, a plurality of shuttle blocks for the shuttles secured to said support member and separated by spaces arranged along said support member, a reed for each of said spaces movable forwardly from a normal position to a beat up position forward of the shuttle blocks when the latter are in normal position, and lock means capable of assuming locking and unlocking positions relative to the support member effective in locking position to hold said support member and shuttle blocks stationary in normal position, said shuttle blocks being movable angularly about said axis forwardly relative to said harness frames when the lock means is in the unlocking position thereof relative to the support member, whether the reeds be in normal or beatup position.

ELBRIDGE R. HOLMES.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 226,594 Cady Apr. 20, 1880 618,214 Steere Jan. 24, 1899 919,023 Kendrick Apr. 20, 1909 1,122,448 Walsh Dec. 29, 1914 2,247,999 Holden July 1, 1941 FOREIGN PATENTS Number Country Date 416,979 France Aug. 20, 1910 

